Do people have a usual function they use when rounding
floats off to two decimal places (in order to represent
monetary amounts)?
I am asking because my program takes a percentage of a
dollar and cents amount, which can give a result of more
than two decimal places.
A friend suggested that I preserve the amount and just
print a rounded-off amount to screen. Good idea?
Miki
[email protected]
Sounds like a good ideaA friend suggested that I preserve the amount and just
print a rounded-off amount to screen.
Code:#include <stdio.h> int main(void) { float num = 10.53456; printf("%.2f", num); // The .2 specifies the number of decimal places return 0; }
All spelling mistakes, syntatical errors and stupid comments are intentional.
Thanks. I have two more questions.
First, does that code round up in case of a third decimal
place that is 5 or more?
Second, can you use <cstdio> instead of <stdio.h> in C++
programs, as I prefer the newer header files?
Miki
[email protected]
Yup, change the value to 10.53656 and try it.First, does that code round up in case of a third decimal
place that is 5 or more?
If you want to use cstdio try it, it will either work or it won'tSecond, can you use <cstdio> instead of <stdio.h> in C++
programs
All spelling mistakes, syntatical errors and stupid comments are intentional.
